Heating and ventilating system



Oct. 28, 1930. A. H. w. scHMfDT HEATING AND VENTILATING SYSTEM FiledOct.. 25, 1926 Patented Oct. 28, 1930 `UNITED STATI-:s

AMTENT VOFI-1era ALBERTH. W. SCHMIDT, OF MINNEAPOLIS, MINNESOTA, ASSIGNR0F ONE-HALF T0 A.

WALDER, 0F MINNEAIYOLIS, MINNESOTA HEATING AND VENTILATING SYSTEMApplication led October 25,- 1926. Serial No. 143,895.

This invention relates to heating and ventilating systems and moreparticularly to such systems of the indirect type.

It is the main object of the invention to provide a simple and highlyefficient indirect heating, cooling and ventilation system capable ofbeing easily installed in connection with a steam or hot water boiler.

This and other objects of the invention will be apparent from thefollowing description made in connection with the accompanying drawingwherein like characters refer to similar parts throughout the severalviews,

' andin which Fig. l is a diagrammatical view, showing a preferredembodiment ofmy invention installed in a building;

Fig. 2 is an end elevation, showng the fan with some portions brokenaway to show the distributing conduits and dampers; and

Fig. 3 is a cross section taken on the line Referring to the drawings,in detail, a steam boiler A is illustrated supported 011 the basementfloor B, a Wall of the'buildin-g being indicated by the letter C. Dindicates-thel first floor of the buildingv supported on the joists E.

I- provide a relatively large heating chamber4,preferably formed ofsheet metal having tapered front and rear ends 4a and 4b respectively.Themain air intake passage 5 communicates with the rear tapered end 4b,draw-- ing its supply of air preferably from the interior of thebuilding and controlled by means of a damper 6. The forward tapered end4EL of the heating chamber is connected to a fan 7, driven throughendless belt 8 by means of a motor 9, illustrated as mounted on a base10 supported by floor B. The outlet of the fan casing is divided into aplurality of compartments, best shown in Fig. 3, communicating with thedistributing conduits lland- 12. As illustrated, the outlet -passage oftlie fan is divided longitudinally by a partition 13 and transversely bypartitions 14, forming two relatively large passages 15 communieatingwith the distributing conduits and three smaller passages 16. Inwardlyswinging dampers 17 and 18 are mounted in passages 15 and 16respectively, controlling the admission of air therethrough. Thesedampers are hinged lto the walls of the fan casing, outlet dampers 17and 18 swinging oppositely and stopped 4by means of vertical parti- 55tion 13, as shown in Fig. 2. Thehinges of said dampers are disposedbelow the lower edge of partition 13 to cause said dampers to bediagonally disposed when closed. Damper bars 19'extend through the sidesof 00 the fan outlet. v

Chamber 4 and fan 7 are supported by any suitable means, such as thehorizontal platform 20, supported from the joists E, by means ofhoo'kbolts 21. 65

A relatively small air intake conduit 22 communicates with the taperedrear end 4b of chamberv 4 at a point below passage 5 and is providedwith the damper 23 to control the admission of air therethrough. Conduit22 70- draws air from without the building for` the purpose ofsupplying, if desired, to the circu-` lation a small amount of freshair.

Within the central portion of chamber 4, I mount a' radiator 24 of anysuitable type, 75 connected to boiler A, by means of intake and Aoutletpipes 25 and 26 respectively. An atomizer or distributing valve 27 isprovided in the forward end of radiator 24 preferably disposed centrallyof the last coilor unit and adapted to discharge vaporwithinthe heatingchamber, A support 28 is disposed be-v tween radiator 24 and fan 7,within chamber 4, adapted to support a refrigerating coil 29. A-suitabledoor 30 is provided in one side of 85 chamber 4 topermit coil v29 to beremoved in cold weather if so desired.

Opera-taba l turefdischarged may tributing conduits.

The construction of the passages 15 and 16 communicating withdistributing conduits 11 and 12 and the mounting of dampers 17 and 18 isof considerable importance. It will be seen that t-he dampers whenclosed serve to direct the heated and moistened air to the openpassages, because of their diagonal disposition and the fact that theyare hinged to the sides of the fan discharge.

In warm weather the refrigerating coil 29 may be operatively connectedto a refrigerating lant and the apparatus will serve as a cooling systemfor the building. It will be seen that the building is not only heatedby means of the indirect system, but is, moreover, eliciently ventilatedthereby.

The efficiency of the system is high, due to the fact that the air iscirculated through-- out the building and will be readily re-heated orcooled to the desired temperature by passing through the thermo chamber4. The proper humidity may be maintained in the circulating air withoutrequiring humidifiers in the several rooms within the building.

It will, of course, be understood that various changes may be made inthe form, details, arrangement and proportions of parts withoutdeparting from the scope of the invention.

What is claimed is:

1. Apparatus yof the class described having in combination an elongatedchamber, an air intake passage adjacent one end of said chamber, meansfor causing air to pass through said chamber, means for thermallytreating air passing through said chamber, and heat distributing meanscomprising a pair of oppositely disposed passages, oppositely swingabledampers in said passages ada ted to form in conjunction a concavo surace when closed, and each operative to guide discharged air to one ofsaid passages when the damper in said last mentioned passage is open.

2. Apparatus of the class described having in combination an elongatedthermal chamber, an air intake passage adjacent one end thereof, meansfor causm air to pass through said chamber, means or thermally treatingsaid air in its passage and heat d1s tribu'ting means adjacent the otherend of said chamber comprising a air of oppositely swingable plates hingat their outer ends and disposed when closed in oppositely inclinedpositions, with -their free ends in juxtaposition, whereby when one ofsaid plates is opened and said other plate closed said closed plate willguide discharged air.

through the passage controlled by said open plate.

-3. In air conditioning apparatus, an elongated chamber. having an airintake passage adjacent the rear end thereof, and a discharge passageadjacent the forward end thereof, a radiator element within said chamberconnected-to a source of hot circulating iuid, a discharge passagel atthe forward -end of said radiator element, a humidifying valve'connectedwith said'last named discharge passage and constructed to dispense aconical discharge of uidcentrally of said chamber and in the directionof said discharge end, a suction fan at the discharge vend of saidchamber adapted to set up a swift passage of air therethrough andto mixwith said air and disintegrate particles of fluid dis,- pensed by saidhumidifying valve, andan air deliver conduit connected with the deliveryend o said fan.

4. Air conditioning apparatus built in the form of a unit, comprising anelongated sube stantially straight casing having an airI intake passageadjacent its rear end, and an air discharge passage adjacent its forwardend, means for suspending said casing from the joists of a oor, aradiatorelement mounted within and supported from said casing andconnected with a source of hot circulating fluid, a discharge passage atthe forward end of said radiator element, a humidif ing valve connectedwith said last named ischarge passage and constructed to dispense fluidcentrally of said casing and in -the direction of the discharge endthereof, and a suction fan secured to the forward end of said casing andadapted to set up a swift passage of air through said casing and also tomix with said air and disintegrate particles of fluid dispensed by saidhumidifying valve, and an air delivery conduit connected with thedischarge end of said fan.

In testimony whereof I afiix my signature.

ALBERT H. W. SCHMIDT.

